| Presentation | 2019-07-24 k Estimation Accuracy Evaluation in Wireless Power Transfer Practical Circuit with Large Change of Power Transfer Distance Hideaki Abe, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Research on wireless power transfer is being conducted from various perspectives. The author has studied a novel mechanism and usage of wireless power transfer using magnetic coupling. In the magnetic coupling feed, the coupling factor k between the transmitting and receiving coils is an important index, and determines important performance such as received voltage, received power, efficiency, etc. Therefore, it is important to keep the numerical value of k within the specified value range in order to provide a good free position of the equipment, and good wireless power transfer during the movement. Also knowing the numerical value of k during power supply makes it possible to optimally control and improve the power supply performance. The author has already demonstrated that in the case of S-SP type and AC resistance load, it is possible to estimate k with high accuracy by using information on the transmission terminal voltage amplitude alone. On the other hand, in a practical circuit, a DC voltage is output through a rectifying and smoothing circuit on the power receiving side. In this paper, it is reported that this practical circuit demonstrates the change suppression effect of DC load voltage and the high accuracy of k estimation in the sense circuit on the power transmission side. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wireless Power Transfer / Coupling Factor / k Estimation in Power Transfer / Transfer Function / Block Diagram / S-SP Type Magnetic Coupling |
| Paper # | EE2019-23 |
| Date of Issue | 2019-07-17 (EE) |
| Conference Information | |
| Committee | EE / IEE-SPC |
|---|---|
| Conference Date | 2019/7/24(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Tadatoshi Babasaki(NTT Facilities) |
| Vice Chair | Keiichi Hirose(NTT Facilities) / Tadashi Suetsugu(Fukuoka Univ.) |
| Secretary | Keiichi Hirose(Sojo Univ.) / Tadashi Suetsugu(Nagasaki Inst. of Applied Science) |
| Assistant | Takashi Matsushita(NTT-F) / Tetsuya Oshikata(ShinDengen) / Yuu Yonezawa(FUJITSU Advanced Technologies) |
| Paper Information | |
| Registration To | Technical Committee on Energy Engineering in Electronics and Communications / Technical Meeting on Semiconductor Power Converter |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | k Estimation Accuracy Evaluation in Wireless Power Transfer Practical Circuit with Large Change of Power Transfer Distance |
| Sub Title (in English) | Demonstration of Suppression of Change in Load Voltage and Transmission Side k Estimation Accuracy in S-SP Type Magnetic Coupling |
| Keyword(1) | Wireless Power Transfer |
| Keyword(2) | Coupling Factor |
| Keyword(3) | k Estimation in Power Transfer |
| Keyword(4) | Transfer Function |
| Keyword(5) | Block Diagram |
| Keyword(6) | S-SP Type Magnetic Coupling |
| 1st Author's Name | Hideaki Abe |
| 1st Author's Affiliation | *(*) |
| Date | 2019-07-24 |
| Paper # | EE2019-23 |
| Volume (vol) | vol.119 |
| Number (no) | EE-146 |
| Page | pp.pp.37-42(EE), |
| #Pages | 6 |
| Date of Issue | 2019-07-17 (EE) |